Occasionally, white stuff is found in the corners of the eyes, usually due to the recent increase in eye secretions caused by excessive use of the eyes, commonly known as eye droppings, which can be relieved by proper rest and a light diet. If white discharge is present for a long time, it is most often caused by infection, allergy and other factors such as conjunctiva, lacrimal gland and lid gland diseases. Chronic bacterial conjunctivitis: The discharge is seen in the corner of the eye in the morning and is initially thin and slimy, but may become mucus-like and purulent as the disease progresses. Initially for the onset of monocular, through hand contact spread to both eyes, eye irritation, can be accompanied by congestion; 2, trachoma: chronic infectious keratitis caused by Chlamydia trachomatis infection. Mostly bilateral onset, more mucous or purulent discharge, accompanied by eyelid redness, congestion; 3, allergic conjunctivitis: also known as immune conjunctivitis, the main symptom is eye itching, may have nighttime symptoms aggravated, tearing with increased viscous discharge, accompanied by pain, foreign body sensation, burning sensation, etc.. Second, other: 1, lacrimal gland inflammation: mostly bacterial, viral infection caused by edema of the eyelids, conjunctival congestion, viscous discharge, accompanied by enlarged lacrimal gland tissue, congestion; 2, lacrimal sac inflammation: manifested as purulent discharge, conjunctival congestion, tearing, while the skin of the lacrimal sac area redness, swelling, pain; 3, dry eye: mostly due to insufficient tear secretion or excessive evaporation, as well as tear composition abnormalities, patients can have dry eyes, The patient may experience dry eyes, astringent eyes, foreign body sensation, and white discharge from the corners of the eyes, which require treatment for the cause; 4. Lid gland dysfunction: This may be due to degenerative changes in the lid gland, and is affected by wearing corneal contact lenses, long-term eye use, high-fat diet, and use of hormonal drugs. It is mostly caused by bacterial infection, inflammation, etc. The clinical phenomenon of involuntary tear overflow can be seen, which can be accompanied by white discharge from the corner of the eyes.